// Copyright (C) 2018 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-atomics.exchange
description: Test Atomics.exchange on arrays that allow atomic operations.
includes: [testAtomics.js, testBigIntTypedArray.js]
features: [ArrayBuffer, Atomics, BigInt, DataView, SharedArrayBuffer, Symbol, TypedArray]
---*/
function Test() {
    const sab = new SharedArrayBuffer(1024);
    const ab = new ArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 2);

    testWithBigIntTypedArrayConstructors(function(TA) {
      const view = new TA(sab, 32, 20);
      const control = new TA(ab, 0, 2);
      view[8] = 0n;
      assert.sameValue(Atomics.exchange(view, 8, 10n), 0n, 'Atomics.exchange(view, 8, 10n) returns 0n');
      assert.sameValue(view[8], 10n, 'The value of view[8] is 10n');

      assert.sameValue(
        Atomics.exchange(view, 8, -5n),
        10n,
        'Atomics.exchange(view, 8, -5n) returns 10n'
      );

      control[0] = -5n;

      assert.sameValue(
        view[8],
        control[0],
        'The value of view[8] equals the value of `control[0]` (-5n)'
      );

      view[3] = -5n;
      control[0] = -5n;

      assert.sameValue(
        Atomics.exchange(view, 3, 0n),
        control[0],
        'Atomics.exchange(view, 3, 0n) returns the value of `control[0]` (-5n)'
      );

      control[0] = 12345n;
      view[3] = 12345n;

      assert.sameValue(
        Atomics.exchange(view, 3, 0n),
        control[0],
        'Atomics.exchange(view, 3, 0n) returns the value of `control[0]` (12345n)'
      );

      control[0] = 123456789n;
      view[3] = 123456789n;

      assert.sameValue(
        Atomics.exchange(view, 3, 0n),
        control[0],
        'Atomics.exchange(view, 3, 0n) returns the value of `control[0]` (123456789n)'
      );

      testWithAtomicsInBoundsIndices(function(IdxGen) {
        let Idx = IdxGen(view);
        view.fill(0n);
        Atomics.store(view, Idx, 37n);

        assert.sameValue(
          Atomics.exchange(view, Idx, 0n),
          37n,
          'Atomics.exchange(view, Idx, 0n) returns 37n'
        );
      });
    });
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
